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Note 7 - Stockholders' Equity - Schedule of Warrant Activity (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands | 9 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2025 | Jun. 30, 2024
Outstanding (in shares) | 80 |
Warrants Outstanding, Weighted Average Exercise Price (in dollars per share) | $ 72.1 |
Outstanding, Aggregate Fair Market Value | $ 3,553 | $ 3,747
Outstanding, Weighted Average Remaining Contractual Term (Year) | 10 months 17 days | 1 year 7 months 6 days
Warrants issued (in shares) | 0 |
Warrants issued, Weighted Average Exercise Price (in dollars per share) | $ 0 |
Warrants issued, Aggregate Fair Market Value | $ 0 |
Warrants exercised (in shares) | 0 |
Warrants exercised, Weighted Average Exercise Price (in dollars per share) | $ 0 |
Warrants exercised, Aggregate Fair Market Value | $ 0 |
Warrants expired (in shares) | (3) |
Warrants expired,Weighted Average Exercise Price (in dollars per share) | $ 154.13 |
Warrants expired, Aggregate Fair Market Value | $ (194) |
Outstanding (in shares) | 77 | 80
Warrants Outstanding, Weighted Average Exercise Price (in dollars per share) | $ 69.04 | $ 72.1

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